scholarly journals INVENTARISASI JENIS-JENIS TANAMAN PENGHASIL NEKTAR DAN POLEN SEBAGAI PAKAN LEBAH MADU Apis mellifera DI KECAMATAN KAIRATU KABUPATEN SERAM BAGIAN BARAT

2020 ◽  
Vol 7 (2) ◽  
pp. 77-82
Author(s):  
Dominggus De Lima ◽  
J. S. A. Lamerkabel ◽  
Inggrid Welerubun
Keyword(s):  
Theobroma Cacao ◽  
Plant Density ◽  
Mangifera Indica ◽  
Psidium Guajava ◽  
Flowering Plants ◽  
The Other ◽  
Survey Techniques ◽  
Nephelium Lappaceum ◽  
Bee Bread ◽  
Number Of Cells

The aim of this research was to determine the kinds of pollen producer plants, its population density and the number of cells contained bee bread (pollen) at bee nest. The observed variables were kinds of plants in general and its density, pollen producer plants, number of cells contained bee breed (pollen). Method used was survey techniques which conducted in four bee farms. The farms were naturally rich of some flowering plants such as Cambodia, asoka, bougainville; and some horticulture plants such as coconut Cocos mufifera), nutmeg (Myristisca frogranas houtt), palm (Arenga pinnata) ,cacao (Theobroma cacao), clove (Syzygiumaromatioum); some fruits plants such as guava(Psidium guajava), nut guava(Arnacidium occidentale), ambutan(Nephelium lappaceum), mango(mangifera indica), banana(Musa paradisiacal), langsat(Lansium domesticium). From the four bee farms chosen, there was revealed that Dusun Kawatu has the highest plant density, followed by respectively Negeri Hatusua, Negeri Waehatu and Negeri Kamarian. Also, Dusun Kawatu has more pollen producer plant varieties in comparison to the other three Negeri/ Dusun(s). However, bee farm in Negeri Kamarian has more number of cell contained pollen than other farms; followed respectively by bee farms in Negeri hatusua, Dusun Kawatu and Negeri Waehatu.

scholarly journals SELEKSI POHON TEDUHAN UNTUK RAIN GARDEN

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Nova Annisa
Keyword(s):  
Water Content ◽  
Theobroma Cacao ◽  
Mangifera Indica ◽  
Psidium Guajava ◽  
Persea Americana ◽  
Canopy Closure ◽  
Rain Garden ◽  
Shade Trees ◽  
Gnetum Gnemon ◽  
The Relationship

Penelitian ini bertujuan untuk mengetahui jenis pohon yang sesuai untuk rain garden, jumlah stomata, proporsi penutupan kanopi dan kandungan air dalam daun dari beberapa jenis pohon teduhan, serta hubungan antara jumlah stomata daun dengan luas daun, jika terdapat faktor proporsi kandungan air yang diduga mempengaruhi akan dikendalikan. Data yang diperoleh di analisis  proporsi kandungan air dalam daun, proporsi penutupan kanopi, dan jumlah stomata dengan menggunakan analisis deskriptif. Untuk mengetahui hubungan antara luas daun, proporsi penutupan kanopi dan kandungan air dalam daun pada pohon teduhan digunakan analisis korelasi parsial dengan bantuan SPSS versi 17. Berdasarkan hasil penelitian terhadap kerapatan stomata dalam ukuran  1cm², diperolehlah 10 jenis pohon teduhan tertinggi seperti Psidium guajava (jambu biji), Mangifera casturi (kasturi), Hevea brasiliensis  (karet), Pithecellobium lobatum (jengkol), Mangifera indica (mangga), Theobroma cacao (coklat), Persea americana (alpukat), Eugenia aquea (jambu air), Gnetum gnemon (melinjo), dan Arthocarpus heterophyllus (nangka). Kerapatan stomata daun tidak berhubungan terhadap luas daun pada pohon teduhan. Kata kunci: pohon teduhan rain garden, stomata. This study aims to determine the type of tree suitable for rain garden, number of stomata, the proportion of canopy closure and water content in the leaves of several types of shade trees, and the relationship between the number of leaf stomata to leaf area, if there is a proportion factor thought to affect the water content will be controlled. Data obtained in the analysis of the proportion of water content in the leaves, the proportion of canopy closure, the location of the tree, and the number of stomata by using descriptive analysis. To determine the relationship between leaf area, the proportion of canopy closure and water content in the leaves of the shade trees used partial correlation analysis with SPSS version 17. Based on the results of a study of the density of stomata in the size of 1 cm², found 10 species of trees shade the best such as Psidium guajava (guava), Mangifera casturi (kasturi), Hevea brasiliensis (rubber), Pithecellobium lobatum (jengkol), Mangifera indica (mango), Theobroma cacao (brown), Persea americana (avocado), Eugenia aquea (rose apple), Gnetum gnemon (melinjo), and Arthocarpus heterophyllus (jackfruit). The density of leaf stomata are not related to the broad leaves of the shade tree. Keywords: rain garden, shade tree, stomata.

scholarly journals VARIASI KEMAMPUAN BEBERAPA JENIS POHON DALAM MENYERAP CO2 PADA TAMAN KOTA BANJARBARU

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Hafiizh Prasetia ◽  
Rony Riduan ◽  
Nova Annisa
Keyword(s):  
Open Space ◽  
Mangifera Indica ◽  
Acacia Mangium ◽  
Psidium Guajava ◽  
Absorption Capacity ◽  
Co2 Absorption ◽  
Swietenia Macrophylla ◽  
Manilkara Zapota ◽  
Terminalia Catappa ◽  
Nephelium Lappaceum

Keberadaan ruang terbuka hijau (RTH) di Kelurahan Komet sangat diperlukan keberadaannya. Jumlah, jenis dan distribusi vegetasi yang sudah ada perlu diketahui untuk membuat perencanaan RTH taman kota dan taman lingkungan yang dibutuhkan di Kota Banjarbaru. Oleh sebab itu, selain untuk menginventarisir RTH taman kota dan taman lingkungan yang ada, juga perlu dilakukan analisis variasi kemampuan serapan CO2 atmosfir beberapa jenis pohon penyusun ruang terbuka hijau Kota Banjarbaru, khususnya Kelurahan Komet. Tata hijau yang digunakan dalam lansekap kawasan taman menggunakan pohon yang bertajuk lebar dan didominansi pohon seperti akasia (Acacia mangium), jambu air (Eugenia aquea), mangga (Mangifera indica), sawo (Manilkara zapota), rambutan (Nephelium lappaceum), jambu biji (Psidium guajava), angsana (Pterocarpus indicus), mahoni berdaun lebar (Swietenia macrophylla), dan ketapang (Terminalia catappa). Penyerapan tertinggi tercatat pada pohon angsana (Pterocarpus indicus) yaitu sebesar 720 kg.tahun-1, sedangkan yang terendah pada pohon jambu biji (Psidium guajava), dan mahoni berdaun lebar (Swietenia macrophylla) yaitu sebesar 61 kg.tahun-1. Kata Kunci: Banjarbaru, serapan CO2, taman. The existence of green open space in Comet Village is indispensable. The number, type and distribution of existing vegetation should be known to make urban park planning and environmental parks needed in Banjarbaru City. Therefore, in addition to the inventory green open space park city and environmental parks that exist, it is also necessary to analyze the variation of atmospheric CO2 absorption capacity of several types of trees making up green open space Banjarbaru City, especially Comet Village. The green streets used in the landscape of the park area use wide-brim and tree-dominated such as Acacia mangium, Eugenia aquea, Mangifera indica, Manilkara zapota, Nephelium lappaceum, Psidium guajava, Pterocarpus indicus, Swietenia macrophylla and Terminalia catappa. The highest absorption was recorded in Pterocarpus indicus tree which was 720 kg.year-1, while the lowest in Psidium guajava and Swietenia macrophylla tree was 61 kg.year-1.Keyword : Banjarbaru, CO2 absorption, park.

scholarly journals Limitation of current probe design for oligo-cross-FISH, exemplified by chromosome evolution studies in duckweeds

Chromosoma ◽  
2021 ◽  
Vol 130 (1) ◽  
pp. 15-25
Author(s):  
Phuong T. N. Hoang ◽  
Jean-Marie Rouillard ◽  
Jiří Macas ◽  
Ivona Kubalová ◽  
Veit Schubert ◽  
...  
Keyword(s):  
Growth Rate ◽  
Chromosome Number ◽  
Chromosome Evolution ◽  
Sequence Similarity ◽  
Flowering Plants ◽  
The Other ◽  
Probe Design ◽  
Congeneric Species ◽  
Specific Design ◽  
Spirodela Polyrhiza

AbstractDuckweeds represent a small, free-floating aquatic family (Lemnaceae) of the monocot order Alismatales with the fastest growth rate among flowering plants. They comprise five genera (Spirodela, Landoltia, Lemna, Wolffiella, and Wolffia) varying in genome size and chromosome number. Spirodela polyrhiza had the first sequenced duckweed genome. Cytogenetic maps are available for both species of the genus Spirodela (S. polyrhiza and S. intermedia). However, elucidation of chromosome homeology and evolutionary chromosome rearrangements by cross-FISH using Spirodela BAC probes to species of other duckweed genera has not been successful so far. We investigated the potential of chromosome-specific oligo-FISH probes to address these topics. We designed oligo-FISH probes specific for one S. intermedia and one S. polyrhiza chromosome (Fig. 1a). Our results show that these oligo-probes cross-hybridize with the homeologous regions of the other congeneric species, but are not suitable to uncover chromosomal homeology across duckweeds genera. This is most likely due to too low sequence similarity between the investigated genera and/or too low probe density on the target genomes. Finally, we suggest genus-specific design of oligo-probes to elucidate chromosome evolution across duckweed genera.

An assessment of the factors controlling the productivity of maize in England

1951 ◽  
Vol 41 (3) ◽  
pp. 271-281 ◽  
Author(s):  
E. S. Bunting ◽  
G. E. Blackman
Keyword(s):  
Dry Matter ◽  
Field Experiments ◽  
Plant Density ◽  
Spatial Arrangement ◽  
The Other ◽  
Mass Selection ◽  
Grain Production ◽  
Forage Production ◽  
Field Scale ◽  
Other Hand

Between 1942 and 1950, some thirty field experiments have been carried out in the southern half of England to assess the potential value, either for grain or forage production, of seventeen openpollinated flint or dent maizes together with twentynine single or double hybrids of American or Canadian origin.Early-maturing flint varieties will consistently ripen grain, but before mechanical threshing or storage, the cobs require drying. Sibthorp, a mass selection made from an unknown German variety, is the earliest and most productive flint maize so far tested, and in the experiments has yielded as much as 39 cwt. of grain per acre with an average of 24 cwt. The earliest American hybrids, i.e. those with a U.S.A. rating of 80 days from sowing to maturity, give very high yields of grain in favourable seasons. Within the group Wisconsin 240–275, a yield level equal to or exceeding 50 cwt./acre has on occasion been recorded. On the other hand, in the most unfavourable years, such hybrids just failed to produce ripe cobs.Attempts to maintain sixty-five parent inlines of the earliest hybrids have largely failed. However, many of the parent single crosses have matured, and the production on a field scale of the double-cross seed of both Wisconsin 240 and 255 has been carried out.Spacing experiments indicate that for optimum grain production a density of 6 plants/sq.yd. is required for both flint varieties and the earliest hybrids. A spatial arrangement of individual plants is to be preferred to that of groups or hills.American hybrids, in the class of ‘90 days’ to maturity, will in all but the most unfavourable seasons reach the ‘early-dent’ stage of the grain before the incidence of autumn frosts. Yields of dry matter of plants harvested in this phase have ranged from 30 to 85 cwt. of dry matter per acre. In these trials, the plant density was standardized at 4 plants/sq.yd. and higher densities may be demanded for optimal yields.The ratio of the ‘ear’ (that is, the cob, immature grain and enclosing leaf sheaths) to the total shoot weight at harvest varies greatly with the variety or hybrid. With White Horsetooth, the usual variety grown for fodder in England, no cobs are formed before the plants are killed by frost, while with the early hybrids, the ear may be half the weight of the whole shoot.The earliest variety Sibthorp from an early May sowing takes approximately 70–80 days to reach full anthesis, while ‘80-day’ American hybrids are a week later. From sowing to full maturity the period in England is from 140 to 160 days, thus compared to conditions in Minnesota the period is nearly twice as long. Because of the much slower rate of development and because of the humidity of English autumns, it is concluded that until the date of maturity can be advanced some 14 days, grain production on a field scale is not yet feasible. On the other hand, many of the American hybrids are well fitted to the production of silage. The greatest drawback to the introduction of such hybrids is the liability of the seed and seedlings to be attacked by rooks.

scholarly journals Influence of chitosan coatings with citric essential oil on the shelf-life of minimally processed mango (Mangifera indica L.)

2015 ◽  
Vol 68 (2) ◽  
pp. 7679-7688
Author(s):  
Fabián Rico Rodríguez ◽  
Carolina Gutiérrez Cortés ◽  
Consuelo Díaz Moreno
Keyword(s):  
Weight Loss ◽  
Ascorbic Acid ◽  
Shelf Life ◽  
Mangifera Indica ◽  
The Other ◽  
Soluble Solids ◽  
Total Acidity ◽  
Minimally Processed ◽  
Color Changes ◽  
Sensory Acceptance

Demand for minimally processed fruits have increased due to their nutritional value and an increasing change in consumption habits. Physicochemical, microbiological, structural and sensory changes were determined in minimally processed mangoes (MPM) with chitosan (CH) edible coatings and lemon and orange essential oils (EOL). The MPM was first dipped in citric acid and a texturizing solution and then dipped in CH and lemon or orange EOL coatings. Weight loss, sensory acceptance, total soluble solids, total acidity, ascorbic acid, color changes, firmness and elasticity, and microbiological changes were quantified for 11 days of refrigerated storage. The CH and lemon EOL coating had more acceptance than the other treatments. No differences were found (p>0.05) for weight loss, total acidity, ascorbic acid, firmness or elasticity. There was a high amount of total phenols due to the EOL composition, as well as a high antioxidant capacity in the early days of storage. This characteristic decreased in the final days of the study. There was a decrease in the microbial charge for the lemon EOL treatment, as compared to the other samples. The CH and lemon EOL coating helped to maintain the shelf-life of the MPM for 11 days of storage without affecting the sensory acceptance. The CH and Orange EOL coating did not have an effect on the MPM physicochemical attributes; however, the sensory acceptance was negatively affected with off-flavors conferred to the MPM.

scholarly journals Detecção rápida de Ceratocystis fimbriata em lenho infetado de eucalipto, mangueira e outros hospedeiros lenhosos

2005 ◽  
Vol 30 (5) ◽  
pp. 543-545 ◽  
Author(s):  
Francisco A Ferreira ◽  
Luis A Maffia ◽  
Evander A Ferreira
Keyword(s):  
Theobroma Cacao ◽  
Mangifera Indica ◽  
Ceratocystis Fimbriata ◽  
Lasiodiplodia Theobromae

Desenvolveu-se uma técnica de detecção rápida de Ceratocystis fimbriata em lenho de eucalipto (Eucalyptus spp.) infetado, visualizando-se clamidósporos (aleuroconídios) ao microscópio ótico comum, em vasos do xilema, medula e raios medulares, a partir de cortes histopatológicos à mão livre, feitos com lâmina de barbear, ao microscópio estereoscópico. O tempo médio gasto para a detecção do patógeno, do corte histopatológico tangencial à total visualização dos clamidósporos ao microscópio ótico comum, foi de 3,5 min e bem menos utilizando-se corte longitudinal passando pela medula, contra, no mínimo, quatro a cinco dias, usando-se outras técnicas como o isolamento em BDA, deposição de fragmentos de lenho doente entre fatias de cenoura usadas como isca, ou pedaços de lenhos doentes deixados em câmara úmida. Essa técnica histopatológica é também viável para a detecção do patógeno em outros hospedeiros lenhosos e, inclusive, para a detecção de hifas de Lasiodiplodia theobromae, mesmo quando esses dois fungos estavam num mesmo tecido, como na doença-complexo seca de mangueira investigada no Sultanato de Omã. Além de eucalipto, mangueira (Mangifera indica) e cacaueiro (Theobroma cacao) é provável que essa técnica possa ser estendida para outros hospedeiros lenhosos de C. fimbriata.

scholarly journals Note: Recording of Some Beetles in Honey Bee Colonies

2018 ◽  
Vol 51 (2) ◽  
pp. 85-90 ◽  
Author(s):  
H.F. Abou-Shaara ◽  
M.E. Ahmad ◽  
J. Háva
Keyword(s):  
Honey Bee ◽  
Honey Bees ◽  
The Other ◽  
Beetle Species ◽  
Large Numbers ◽  
The World ◽  
Bee Bread ◽  
Small Hive Beetles ◽  
Bee Colonies ◽  
Different Parts

Abstract Honey bees are very valuable to human. These social insects contribute in the pollination of many crops. Also, the products from honey bee colonies have many nutritional and medicinal benefits. Thus, keeping honey bees are very valuable and can be considered as source of income to many families. There are many diseases and pests that attack honey bee colonies. The pests attack bee colonies include: hornets, wax moths, bee-eater birds, and beetles. Such challenges can impact the survival and productivity of honey bee colonies. In this study, some beetle species belong to Fam. Nitidulidae, Dermestidae and Mycetophagidae were detected in honey bee colonies in Egypt, during spring. Despite the presence of many beetle species in the agricultural environment, only few species preferred the invasion of the colonies for feeding. These beetles do not attack stages of honey bees. They only feed on stored pollen or bee bread, especially those fallen on the bottom of the beehives. This is an alarm to follow the feeding behavior and distribution of these beetles. These beetles’ species can be considered as potential pests to weak honey bee colonies, housed in old or damaged beehives. The presence of large numbers of these beetles in weak colonies may disturb the activities of the bees and may passively impact the survival of the colonies. Listing these beetles is very important to better understanding the interaction between honey bees and beetles. On the other side, small hive beetles were not detected in the colonies. These beetles are currently one of the major problems facing honey bees in different parts of the world. This study confirms the absence of small hive beetles from Egypt.

The cellular structure of the female reproductive system within the Heteroderinae and Meloidogyninae (Nematoda)

Nematology ◽  
2002 ◽  
Vol 4 (8) ◽  
pp. 953-963 ◽  
Author(s):  
Etienne Geraert ◽  
Rita Van Driessche ◽  
Gerrit Karssen ◽  
Wim Bert
Keyword(s):  
Reproductive System ◽  
Cellular Structure ◽  
Cell Number ◽  
The Other ◽  
Genital System ◽  
Female Reproductive System ◽  
Young Females ◽  
Genital Structure ◽  
Number Of Cells ◽  
Female Genital

AbstractGonads from living young females, representing 23 different species, were extracted to study the cellular structure of the female genital structure within the Meloidogyninae and Heteroderinae. All genera studied can be characterised by their cellular spermatheca morphology. Within Meloidogyne a spherical spermatheca is found with lobe-like protruding cells, most species having 16 to 18 spermatheca cells with interlaced cell boundaries while M. microtyla and M. ichinohei have more spermatheca cells with different cell boundaries. Heterodera and Globodera reveal a comparable gonad structure. The spermatheca cells of Heterodera are columnar and arranged in a restricted number of rows, whereas in Globodera the spermatheca cells are squarish to rounded, depending on the species. The gonad morphology of Afenestrata koreana is clearly different from what would be expected based on the related genera Globodera and Heterodera. The apparently simplest genital system was found in Meloidodera floridensis where the uterus has a limited number of cells. In the other genera studied a large and variable cell number was found.

scholarly journals Comparative account of vitamin C contents, antioxidant properties and iron contents of minor fruits in Sri Lanka

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Hashini Imalsha Abeysuriya ◽  
Vajira P Bulugahapitiya ◽  
Loku Pullukkutige Jayatissa
Keyword(s):  
Sri Lanka ◽  
Vitamin C ◽  
Mangifera Indica ◽  
Antioxidant Properties ◽  
Dehydroascorbic Acid ◽  
Psidium Guajava ◽  
Sri Lankan ◽  
Antioxidant Power ◽  
Melastoma Malabathricum ◽  
Ic50 Values

Sri Lanka is a habitat of diverse fruit varieties; nevertheless 95% of them are underutilized by people due to unawareness of their nutritional values and health aspects, and hence become ‘minor fruits’. This study was aimed on revealing vitamin C, iron and antioxidant contents of 29 varieties of minor fruits (MFs) with the comparison of the same with three best commonly consumable fruits (CFs), namely Carica papaya, Mangifera indica and Psidium guajava. Ascorbic acid (Asc), dehydroascorbic acid (DAsc), vitamin C (TC), phenolic (TP), flavonoid (TF), iron (Fe) contents and antioxidant capacities (AOCs) of fruits were determined using standard methods. The results of mean Asc, DAsc, TC, TP, TF and Fe contents in 100 gm of MFs ranged from 3.1 to 121.5 mg, 1.2 to 70.7 mg, 6.6 to 136.1 mg, 24.9 to 1613.3 mg Gallic acid equivalent, 6.2 to 228.0 mg Quercetin equivalents and 0.2 to 4.9 mg respectively. DPPH and Ferric Reducing Antioxidant Power (FRAP) assays were used for AOCs and variation of IC50 values in a DPPH assay was 1.2 to 245.4 mg/ml whereas FRAP values ranged from 9.6 to 486.7 ?mol FeSO4/gm. Among the studied minor fruits, Melastoma malabathricum (Maha bovitiya/ Malabar melastome) is found as the best respect to all considered parameters. As a conclusion, it can be stated that, the Sri Lankan minor fruits are good alternatives to the common fruits as they are recognized as good source of vitamin C, iron and higher content of antioxidants. As an outcome, Sri Lankan minor fruits can be promoted as alternatives to common fruits and as source of revenue for national economy.

Orgyia postica. [Distribution map].

2000 ◽  
Author(s):  
Keyword(s):  
Glycine Max ◽  
Papua New Guinea ◽  
Theobroma Cacao ◽  
Tamil Nadu ◽  
Mangifera Indica ◽  
Uttar Pradesh ◽  
Ryukyu Archipelago ◽  
Distribution Map ◽  
Brunei Darussalam ◽  
New Distribution

Abstract A new distribution map is provided for Orgyia postica (Walker) Lepidoptera: Lymantriidae Attacks cocoa (Theobroma cacao), tea (Camellia sinensis), coffee (Coffea spp.), soyabean (Glycine max), rubber (Hevea brasiliensis), mango (Mangifera indica), grapevine (Vitis vinifera) and other crops. Information is given on the geographical distribution in ASIA, Bangladesh, Brunei Darussalam, China, Fujian, Guangdong, Guangxi, Hainan, Hong Kong, Yunnan, India, Kerala, Nagaland, Sikkim, Tamil Nadu, Uttar Pradesh, Indonesia, Java, Kalimantan, Sulawesi, Sumatra, Japan, Ryukyu Archipelago, Laos, Malaysia, Myanmar, Philippines, Sri Lanka, Taiwan, Thailand, Vietnam, OCEANIA, Papua New Guinea.

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